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| Question | Answer |
|---|---|
| Nitrifying Bacteria | change nitrogen into forms that plants can take up through their roots. |
| Nitrogen cycle | describes how nitrogen moves from the atmosphere to the soil, to living organisms, and then back to the atmosphere. |
| phoshorus cycle | describes how phoshorus moves from soil to producers and consumers, and back to soil. |
| carbon cycle | describes how carbon moves between the living and non living environment. |